| Abbreviation | Definition |
|---|---|
| ER | Enclosing Region |
| ERE | Expected Relative Error |
| ERNA | Exact Real Number Arithmetic |
| ERP | Error Reduction Parameter |
| ES | Exponentially Small |
| ES | External Sector |
| ES | Extreme Spread |
| ESAIM | European Series in Applied and Industrial Mathematics |
| ESC | Extremely Slow Convergence |
| ESD | Estimated Standard Deviation |
| ESE | Estimated Standard Error |
| ESIS | Element Structure Information Set |
| ESLA | Educational Software for Linear Algebra |
| ESMA | European Society for Mathematics and the Arts |
| ESME | Electronic Seminar on Mathematics Education |
| ESNF | Extended Sequence Number Format |
| ESP | Entire Shape Path |
| ESP | Equation Solution Property |
| ESPRIT | Estimation of Signal Parameters via Rotational Invariance Techniques |
| ESS | Error Sum of Squares |